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xv                                THE   CAPE   MOLE-RAT                             481
the nostrils are small, and the forehead but little expanded
between them.
The genus Bathyergus contains but a single species, the Cape
Mole-Kat, which is found in Southern Africa ; it is of moderate
size, not exceeding a small Rabbit in dimensions. On the
fore-limbs are exceedingly long claws, of which that borne by
the second finger is the longest, and the claw of the thumb the
shortest. The hind-feet have by no means such long claws.
The scratching and burrowing is naturally chiefly effected by the
fore-limbs. The small and large intestines are of equal length,
and each is rather more than six times the length of the caecum.;
in these measurements the present genus differs from the next.
GreorJtycfous, — Of this African genus there are about ten
species. The claws are not so long as in the last genus, but
there ar^, as in Sathyergus, four molar teeth on each half of
each jaw. The intestinal measurements In an example of 6r.
capensis were: small intestine, 2 5 inches; caecum, 4 inches;
large intestine, 15 inches.
The genus Myosccdops or Helipkobius (also with an African
range) has six back teeth on each side. A number of species
sometimes referred to the last genus are placed here by Mr.
Thomas. The claws are small.
One of the most remarkable genera of this family is the little
HeterocepJialus from Abyssinia and Somaliland. As Mr. Thomas
justly remarks,1 it<e is a peculiar-looking little creature, about the
size of the Common Mouse, but looking almost more like a tiny
hairless puppy on account of its nearly naked skin, small eyes,
and peculiar physiognomy." Though apparently naked, there are
numerous scattered hairs over the entire body, and the toes are
fringed with stimsh hairs, which must be advantageous to a
burrowing animal. There are two species, If. glaber (originally
described by Buppell), and H. p7iilUpsii> of which our knowledge
is due to Mr. Thomas. The length of the entire creature in-
cluding the tail is not more than 134 mm., both species being
approximately of the same dimensions. Mr. Ix>rt Phillips, the
discoverer of the species which bears his name, writes " that this
little creature, called ' Farumfer * by the Somali, throws up In
places groups of - miniature craters, which exactly resemble
volcanoes in active eruption. "When, the little beasts were at
1  "Notes on the Hodent genus Hateroce$Jia,lus3" Proc. Zfo&l. <Soc« 1885, p. 84.5.
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